Improvement in windmills



B. WEIRICH.

Wind-Mill.

Patented June 15, 1875..

lm/w( wr I THE GRAPHC vCLPNDTO'LITN.39 5. 4l PARK PLACEJLY.

PATENT OFFICE.

BENEDIOT WEIRICH, OF MIDDLEBURY, INDIANA, ASSIGNOR TO HIMSELF AND JACOB J. HOOHS'IETTER, OF SAME PLAGE.

IMPROVEMENT lIN WINDMILLS.

Specification forming part of Letters Patent No. l 64,623, dated J une 15, 1875; application tiled v March 6, 1875.

To all whom it may concern Be it known that I, BENEDIGT WEIRICH, of Middlebury, in the county of Elkhart and State ot' Indiana, have invented an Improvement in IVindmills, of which the following is a specification:

The nature of this invention relates to an improvement in windmills of that class which are so constructed as to be turned partially or entirely out of the wind when the latter increases beyond a given force or velocity; and it consists, generally, in the combination of a governin g-sail geared with the turn-table, and hung on the sleeve which rotates on the standard, the turn-table being so sleeved on the latter as to be susceptible of an axial rotation thereon, derived from or actuated bythe governor, as more fully hereinafter set forth.

Figure 1 is a perspective view of my windmill, showing the wheel in the wind, and in dotted outline the turn-table turned partially out of the wind by the force ot' the latter eX- erted upon the governing-sail. Fig. 2 is a vertical section at xx. Fig. 3 is a horizontal section ot'the'turn-table at y y. Fig. 4t is a similar section ot' the sleeve and standard through z z.

In the drawing, A represents a tubular castiron standard, secured to the top of the tower, its diameter being contracted a short distance Y above its base to form a shoulder. B is a sleeve which slips over the standard A, and has a shoulder in its lower part, between which and that of the standard a series of frictionrollers, a, are interposed, so that the sleeve and its load can rotate freely thereon.

The upper end of the sleeve has a wide groove formed in it, and is kept from rising ott the standard by a ring, c, sprung into a groove in the top ot the standard, which ring partially covers the top of the sleeve; or the latter may be secured .by pins or otherwise. C is a turn-table cast with a pendent flange to inclose the groove in the sleeve, and on the plane of the latter a corresponding groove is turned in the ange. In the grooves a series of friction-wheels, b, are placed, beingpof such length that one-half of each roller lies in the sleeve-grooves, and its other halt' projecting into the turn-table groove. A slot, d, is made in the turn-table, and another, e, in the ange of the sleeve, through which to introduce the rollers b. D is an ordinary wind-wheel with stationary sails, mounted on a shaft, f, which is journaled through a long bearing, g, on the turn-table. The inner end of the shaft carries a face-plate and wrist-pin, to which latter the pitrnan is strapped. E is the tail or vane, which is secured to the sleeve. F is a geared quadrant, which is journaled on an arm projecting from the side of the sleeve, at a right angle with the vane, and meshes with a mortised segment, G, under the bottom .edge ot' the turn-table flange. H is a governor sail or vane, pendent from the quadrant, with its face to the wind, remaining pendent in a vertical plane until the force ofthe wind exceeds a given limit, when said vane will be swung up partly into the plane of the direction ofthe wind, causing the turn-table to be so rotated as to bring the sail-wheel partially out ofthe wind, thereby reducing its velocity. When the pressure of thewind exceeds a certain further linnn-beyond which the safety of the apparatus would be endangered, the vane swinging up a little farther, the wheel is turned a little more, when the wind takes it edgewise, and swings it around into the plane of the wind, when it ceases to rotate. When the force of the wind decreases, the governorvane, acting as a lever, swings back the sailwhcel into the wind again.

It will then be seen that the vane H acts as a governor to regulate the speed of the wheel in certain limits, beyond which it stops the mill altogether.

What l claim as my invention, and desire to secure by Letters Patent, is-

l. The combination of the tubular standard A, sleeve B, carrying a guide-vane, and the turn-table C, carrying the wind-wheel, with the geared quadrant F, segment G, and a governor-vane, H, substantially as and for the purpose set forth.

2. The combination ot' the standard A, having the ring c, with the sleeve B, having the slot E, turn-table O, having the slot d, and friction-rollers a' b, substantially as described.

BENEDIOI VVEIRIGH. lVitnesses H. F. EBERTs,

U. E. HUEsTIs. 

